{"instruction": "你是专门进行关系抽取的专家。请从input中抽取出符合schema定义的关系三元组，不存在的关系返回空列表。请按照JSON字符串的格式回答。", "schema": ["临床表现", "相关（症状）", "影像学检查"], "input": "ST段抬高型心肌梗死@经食管超声心动图也可以显示夹层撕裂片和真假腔。"}
{"临床表现": [{"subject": "ST段抬高型心肌梗死", "object": "夹层撕裂片"}, {"subject": "ST段抬高型心肌梗死", "object": "真假腔"}], "相关（症状）": [], "影像学检查": [{"subject": "ST段抬高型心肌梗死", "object": "食管超声"}, {"subject": "ST段抬高型心肌梗死", "object": "心动图"}]}